Q. Consider car moving on a straight road with a speed of $100\ m/s$. The distance at which car can be stopped is $\lbrack\mu_{k} = 0.5\rbrack$
A) $100\ m$
B) $400\ m$
C) $800\ m$
D) $1000\ m$
Explanation
(d) $s = \frac{u^{2}}{2\mu g} = \frac{(100)^{2}}{2 \times 0.5 \times 10} = 1000\ m$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.